/**
@defgroup Er7Utils Er7Utils
The ER7 numerical utilities package.

@addtogroup Er7Utils
@{

/**
 * Namespace in which the entirety of the
 * ER7 numerical utilities package is embedded.
 */
namespace er7_utils {
}


@defgroup Jeod Jeod
The ER7 numerical utilities side of the er7_utils/JEOD interface.

@addtogroup Jeod
@{

namespace er7_utils {

/**
 * Namespace in which the er7_utils/JEOD interface is embedded.
 */
namespace jeod_interface {
}
}

@}


@defgroup Trick Trick
The ER7 numerical utilities side of the er7_utils/Trick interface.


@defgroup Interface Interface
Low-level interface utilities used internally within the
ER7 numerical utilities package.

@defgroup Integration Integration
Numerical integration techniques.

@addtogroup Integration
@{

@defgroup Abm4 Abm4
Fourth order Adams Bashforth Moulton integration.

@defgroup Beeman Beeman
Beeman's method.

@defgroup Core Core
Common integration infrastructure.

@defgroup Euler Euler
Euler's method.

@defgroup Mm4 Mm4
Modified midpoint 4.

@defgroup Nl2 Nl2
Nystrom-Lear 2 integration.

@defgroup Rk2Heun Rk2Heun
Heun's method.

@defgroup Rk2Midpoint Rk2Midpoint
Midpoint method.

@defgroup Rk4 Rk4
Canonical fourth order Runge Kutta.

@defgroup Rkf45 Rkf45
Runge Kutta Fehberg 4/5.

@defgroup Rkf78 Rkf78
Runge Kutta Fehberg 7/8.

@defgroup Rkg4 Rkg4
Fourth order Runge Kutta Gill.

@defgroup SymplecticEuler SymplecticEuler
Symplectic Euler integration, aka Euler-Cromer.

@defgroup VelocityVerlet VelocityVerlet
Velocity verlet method.

@}
@}
*/